Verified
Maine Trailer Brake Laws 2026: Required Over 3,000 lb
Maine Title 29-A section 1902 requires trucks, truck tractors, tiny homes, trailers, and semitrailers to have adequate brakes acting on all wheels of all axles, with an exception for trailers or semitrailers not exceeding 3,000 lb gross weight and other listed exceptions.
- Brake threshold
- 3,000lbgross weight
- Breakaway switch
- Not required statewide
- Safety chains
- Required
- Towing speed
- Posted limits
- Double towing
- Not recorded
On this page8 sections
Quick answer: 3,000 lb gross weight
In Maine, trailer brakes are currently listed at 3,000 lb (gross weight). Maine measures gross weight, so weigh the trailer as you actually tow it.
Maine trailer equipment rules
Breakaway switch
Trailers and semitrailers over 3,000 lb gross weight must have brakes acting on all wheels of all axles, but no breakaway device is imposed. The word breakaway appears in Title 29-A only in the safety-chain provision.
- Applies when
- Trailer type and weight may matter
- Source
- 29-A M.R.S. 1902(4)
- Last checked
- 2026-08-21
Safety chains
A trailer, semitrailer or vehicle being towed must have, in addition to the tow bar or coupling device, a safety chain or steel cable of not less than one-quarter inch wire attached so as to prevent breakaway. Fifth-wheel truck-tractor and semitrailer units are exempt.
- Applies when
- Conventional trailer couplings
- Source
- 29-A M.R.S. 2385(3)
- Last checked
- 2026-08-21
Speed / lane rule
No towing-specific speed limit; follow posted limits. Maximum rates are 25 mph in business or residential districts and 45 mph on all other public ways unless otherwise posted.
- Applies when
- Posted roads and vehicle combinations
- Source
- 29-A M.R.S. 2074(1)
- Last checked
- 2026-08-21
Double towing
Needs verification with Maine statutes.
- Applies when
- Multiple-trailer combinations
- Source
- Verified
- Last checked
- 2026-07-13
Read against the linked sources on . Statutes change and enforcement varies by trailer type — confirm before you tow.
Check your setup
How the 3,000 lb threshold applies to three trailers
Maine measures gross weight, so the weight of the trailer as loaded is what counts.
| Example trailer | Weight checked | Against 3,000 lb |
|---|---|---|
| Small utility trailer | 1,650 lb | Under the Maine threshold by 1,350 lb |
| Loaded just under the line | 2,900 lb | Inside the Maine limit, but one heavy load away from crossing it |
| Mid-size travel trailer | 4,800 lb | Over the Maine threshold by 1,800 lb — brakes required |
How Maine compares with neighbouring states
None of the 1 states bordering Maine set a stricter numeric brake threshold in this dataset, but bases and equipment rules still differ — check each state page before a trip.
| Bordering state | Brake threshold | Compared with Maine |
|---|---|---|
| New Hampshire | 3,000 lb gross weight | Same threshold |
Planning a multi-state trip? The route brake law checker compares every state on a route at once.
Official source links
Maine towing law FAQ
Are trailer brakes required in Maine?
Maine currently lists a trailer brake threshold at 3,000 lb gross weight. Always verify the official state source before towing.
What weight requires trailer brakes in Maine?
The current data lists 3,000 lb gross weight as the brake threshold.
Is a breakaway switch required in Maine?
Trailers and semitrailers over 3,000 lb gross weight must have brakes acting on all wheels of all axles, but no breakaway device is imposed. The word breakaway appears in Title 29-A only in the safety-chain provision. (29-A M.R.S. 1902(4))
Are safety chains required in Maine?
A trailer, semitrailer or vehicle being towed must have, in addition to the tow bar or coupling device, a safety chain or steel cable of not less than one-quarter inch wire attached so as to prevent breakaway. Fifth-wheel truck-tractor and semitrailer units are exempt. (29-A M.R.S. 2385(3))
Can I tow two trailers in Maine?
Needs verification with Maine statutes.
Is there a towing speed limit in Maine?
No towing-specific speed limit; follow posted limits. Maximum rates are 25 mph in business or residential districts and 45 mph on all other public ways unless otherwise posted. (29-A M.R.S. 2074(1))
Does Maine measure trailer weight as GVWR or actual weight?
Maine uses gross weight, so weigh the trailer as you actually tow it rather than reading the data plate.
Where can I verify Maine towing laws?
Start with the 2 official sources linked on this page, beginning with Maine Revised Statutes Title 29-A Chapter 17 equipment. Prefer state DOT, DMV, legislature, or public-safety pages over summaries from private websites. This page was last checked on 2026-07-13.
Disclaimer: educational summary, not legal advice. Statutes and enforcement practice change — verify the Maine sources linked above before towing.